Error in bapi_po_getdetail

Question

Hi all,
I am using BAPI_PO_GETDETAIL to get required data. cODE IS
data: po_items type table of bapiekpo with header line.
data: po_item_schedules type table of   BAPIEKET with header line.
data: PO_ITEM_TEXTS type table of BAPIEKPOTX with header line.
data: PO_ITEM_ACCOUNT_ASSIGNMENT type table of BAPIEKKN
                                     with header line.
data: PO_HEADER_TEXTS type table of BAPIEKKOTX with header line.
data: PO_HEADER type BAPIEKKOL.
data: return1 type table of BAPIRETURN with header line.
parameters: p_ebeln type ekko-ebeln.
call function 'BAPI_PO_GETDETAIL'
  exporting
    purchaseorder                    = p_ebeln
    ITEMS                            = 'X'
  ACCOUNT_ASSIGNMENT               = ' '
  SCHEDULES                        = ' '
  HISTORY                          = ' '
  ITEM_TEXTS                       = ' '
  HEADER_TEXTS                     = ' '
  SERVICES                         = ' '
  CONFIRMATIONS                    = ' '
  SERVICE_TEXTS                    = ' '
  EXTENSIONS                       = ' '
IMPORTING
    PO_HEADER                        = PO_HEADER
  PO_ADDRESS                       =
tables
PO_HEADER_TEXTS                  = PO_HEADER_TEXTS
   po_items                         = po_items
PO_ITEM_ACCOUNT_ASSIGNMENT   = ITEMACCOUNT_ASSIGNMENT
   PO_ITEM_SCHEDULES                = PO_ITEM_SCHEDULES
PO_ITEM_CONFIRMATIONS            =
PO_ITEM_TEXTS                    = PO_ITEM_TEXTS
  PO_ITEM_HISTORY                  =
  PO_ITEM_HISTORY_TOTALS           =
  PO_ITEM_LIMITS                   =
  PO_ITEM_CONTRACT_LIMITS          =
  PO_ITEM_SERVICES                 =
  PO_ITEM_SRV_ACCASS_VALUES        =
    RETURN                           = RETURN1
  PO_SERVICES_TEXTS                =
  EXTENSIONOUT                     =
Problum is there is no data in PO_ITEM_SCHEDULES. But there is data in database.
What would be problum?
plese let me know as soon as possible.
Thank you,
shashikanth.

Answer 1

CALL FUNCTION 'BAPI_PO_GETDETAIL'
  EXPORTING
    PURCHASEORDER                    =
   ITEMS                            = 'X'
   SCHEDULES                        = 'X'
IMPORTING
   PO_HEADER                        = tabx
   PO_ADDRESS                       = tabx
TABLES
   PO_HEADER_TEXTS                  = tabx
   PO_ITEMS                         = tabx
   PO_ITEM_SCHEDULES                = tabx.